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  1. By: Guiasu, Radu Cornel
    Type: Article
    In: The Canadian field-naturalist
    Volume: 121
    Issue: 1
    Date: 2007-01-01
    Page Range: 109--110
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Guiasu, Radu Cornel
    Type: Article
    In: The Canadian field-naturalist
    Volume: 122
    Issue: 1
    Date: 2008-01-01
    Page Range: 89--90
    Publication Info: Ottawa Ottawa Field-Naturalists' Club